docs: add tooling section

Add a section that discusses the AEP tooling ecosystem. This
will better improve the discoverability of the tools.

pages/general/tooling-and-ecosystem.md

@@ -0,0 +1,54 @@
+# Tooling and Ecosystem
+
+In addition to an API design specification, AEPs also provide an ecosystem of
+tooling to help produce and interact with these APIs.
+
+## Diagram
+
+The following is a diagram that illustrates an end-to-end workflow, including
+nodes of tooling that exists, or is intended to be created for the project.
+
+Some of the tools in the diagram are not maintained by the AEP project. The
+diagram is intended to be a complete representation of tools available to help
+a user understand how the tools fit in to a development workflow.
+
+```mermaid
+flowchart TD
+tool([tool])
+use-case[/possible use case/]
+user(user authored)
+generated{{generated}}
+```
+
+The service generation tooling looks like:
+
+```mermaid
+flowchart TD
+    resources("AEP Resource yaml")
+    resources --> hub(['<a href="https://github.com/aep-dev/aepc">aepc: service API generator</a>'])
+    hub --> proto{{"gRPC protobuf definition"}}
+    hub --> openapi{{"OpenAPI Schema"}}
+    hub --> graphql[/GraphQL definitions/]
+    proto --> proto-service(your proto service)
+    proto-service --> http-grpc{{"HTTP REST APIs via grpc-gateway"}}
+    proto --> proto-linter([<a href="https://github.com/aep-dev/api-linter">aep-proto-linter: lint gRPC definitons for AEP compliance.</a>])
+    openapi --> http-generated{{api stubs via openapi-generator}}
+    openapi --> oas-linter([<a href="https://github.com/aep-dev/aep-openapi-linter">aep-openapi-linter: lint OAS definitions for AEP compliance.</a>])
+    http-generated --> http-service(your http service)
+```
+
+While the client tooling for an AEP-compliant compatible API includes:
+
+```mermaid
+flowchart LR
+    http["AEP-compliant REST API and OpenAPI definition"]
+    http --> cli([<a href="https://github.com/aep-dev/aepcli">aepcli: a command-line interface for AEP-compliant APIs</a>])
+    http --> terraform_generator(["terraform provider generator (planned)"])
+    terraform_generator --> terraform{{"terraform provider"}}
+    http --> llm[/"LLM plugin (external integration)"/]
+    http --> ui([<a href="https://github.com/aep-dev/aep-explorer">aep-explorer: interactive web UI to create, edit, list, and modify resources])
+    http --> sdks[/"Language-specific libraries (e.g. via openapi-generator)"/]
+    http --> asset_inventory[/"Asset inventory and policy management tooling (external integration)"/]
+    http --> crd_generator(["Kubernetes Custom Resource Definitions generator"])
+    http --> docs(["API documentation generator (planned)"])
+```